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Cataract (loss of clarity of the lens (subcapsular (anterior, posterior),…
Cataract
loss of clarity of the lens
nuclear sclerosis
subcapsular
anterior
posterior
cortical
aetiology
senile/age-related
pre-senile
systemic
DM
corticosteroid therapy
atopy
galactosaemia
hypocalcaemia
dystrophia myotonica
ocular
blunt/perforating trauma
high myopia
recurrent uveitis
topical steroid use
ionising radiation
excessive UV light exposure
infrared irradiation
congenital
downs
ancillary
visual acuity
snellen
visual fields
pupillary reflexes
fundus examination
clinical
signs
leukocoria
decreased vision
snellen
visual fields
symptoms
disturbance of vision
gradual loss of clarity with dimness of vision
progressive myopia
glare or mononuclear diplopia
prognosis
80% of eyes achieve 6/12 vision or better following surgery
dependent on pre-existing retinal function
complications
disease
blindness
glaucoma
surgery
posterior capsule opacification
iral prolapse
vitreous prolapse
posterior capsule damage
endopthalmitis
incidence
common
pathophysiology
? but UV light implicated
diagnosis
slit lamp examination
treatment
surgery
dependent on degree of impairment
diabetic retinopathy
lens extraction
extracapsular
intracapsular
IOL implantation